Infinite loop trying to validate/save - php

Question

I'm using Yii framework to create a really simple 1 text-area field and 2 hidden inputs with predefined values sent from the server.
The way it should work is as expected, I mean, you write something on that text-area and you click on the send button. An ajax validation is made (only requisite for the text-area is that is shouldn't be empty) and if validated, save the data and redirect to some other page.
The problem is that it won't save any data if validation error was triggered.
I mean, if I go to the page, write something and hit on the send button, data will be saved and I'll be redirected correctly. But if I go to the page, hit the send button (without typing anything in the text-area), wait for the error to appear (note that this is done via ajax, so no page-reload here), write something and hit send again Yii is going to start making a request after a request in an infinite loop.
I already have checked the data being sent, and everything is fine (both data and action-url).
Here is my Controller code
public function actionView($id)
{
$user = Usuario::model()->findByAttributes(
array(
'nick'=>Yii::app()->user->getId()
)
);
$dataProvider=new CActiveDataProvider('Mensaje', array(
'criteria'=>array(
'with'=>array('usuario', 'usuario.detallesusuario'),
'condition'=>'Tema_idtema='.$id
),
'pagination'=>array(
'pageSize'=>1000,
),
));
$this->render('view',array(
'model'=>$this->loadModel($id),
'usuario_id'=>$user->idusuario,
'tema_id'=>$id,
'dataProvider'=>$dataProvider,
));
}
public function actionCreateMessage(){
$model=new Mensaje;
$this->performAjaxValidation($model);
if(isset($_POST['Mensaje']))
{
$model->attributes=$_POST['Mensaje'];
$model->fecha_hora=new CDbExpression('NOW()');
$model->save();
$this->redirect(array('view', 'id'=>$model->Tema_idtema));
}
}
And the code from the View
<?php
$model = new Mensaje();
echo $this->renderPartial('_mensaje_form', array(
'model'=>$model,
'usuario_id'=>$usuario_id,
'tema_id'=>$tema_id,
),
false, //return instead of echo
true //post-process
);
?>
Here is the "_mensaje_form" code
<?php $form=$this->beginWidget('CActiveForm', array(
'id'=>'mensaje-form',
'action'=>CHtml::normalizeUrl(array('tema/createMessage')),
'enableAjaxValidation'=>true,
'clientOptions'=>array(
'validateOnSubmit'=>true,
'validateOnChange'=>false,
'validateOnType'=>false,
),
)); ?>
<?php echo $form->errorSummary($model); ?>
<div class="row" style="margin:20px 5px 0 176px;">
<?php echo $form->labelEx($model,'mensaje'); ?>
<?php echo $form->textArea($model,'mensaje',array('rows'=>6, 'cols'=>50)); ?>
<?php echo $form->error($model,'mensaje'); ?>
<?php echo $form->hiddenField($model, 'Tema_idtema', array('value'=>$tema_id)); ?>
<?php echo $form->hiddenField($model, 'Usuario_idusuario', array('value'=>$usuario_id)); ?>
</div>
<div class="row buttons" style="margin:-3px 0 -8px 176px;">
<?php echo CHtml::submitButton($model->isNewRecord ? 'Responder' : 'Guardar'); ?>
</div>
<?php $this->endWidget(); ?>
Any idea why I'm getting that loop?

Answer 1

This might help you,
http://www.yiiframework.com/forum/index.php/topic/10427-ajax-clientscript/
in your view, the last parameter "true" in renderPartial may be the problem.

Answer 2

My guess (a bit long shot) that form id in your preformAjaxValidation() might be wrong, so it causes the loop! since it won't get in the body of the if and hence executes Yii::app()->end(); !!
Check it in your controller:
protected function performAjaxValidation($model)
{
if(isset($_POST['ajax']) && $_POST['ajax']==='exact-form-id')//should be mensaje-form
{
echo CActiveForm::validate($model);
Yii::app()->end();
}
}